I have XP on my old Computer and when I deleted in C:/Documents And Settings/your_username/.limewire and restarted Limewire it worked like a charm.

However I still can not get it to work on my new computer that uses Vista. Anyone with Vista been able to get it up and running? I've uninstalled and installed it a bunch of times and still no luck. I even went one by one to delete folders and nothing.